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Fixed wasmer-js

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This commit is contained in:
Syrus Akbary
2021-07-27 11:35:11 -07:00
parent 5120b7172e
commit fe49a91df2
1 changed files with 5 additions and 14 deletions
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19
lib/api/src/js/ptr.rs
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@@ -86,13 +86,6 @@ impl<T: Copy, Ty> WasmPtr<T, Ty> {
}
}
#[inline(always)]
fn align_pointer(ptr: usize, align: usize) -> usize {
// clears bits below aligment amount (assumes power of 2) to align pointer
debug_assert!(align.count_ones() == 1);
ptr & !(align - 1)
}
/// Methods for `WasmPtr`s to data that can be dereferenced, namely to types
/// that implement [`ValueType`], meaning that they're valid for all possible
/// bit patterns.
@@ -109,8 +102,7 @@ impl<T: Copy + ValueType> WasmPtr<T, Item> {
if total_len > memory.size().bytes().0 || mem::size_of::<T>() == 0 {
return None;
}
let offset = align_pointer(self.offset as usize, mem::align_of::<T>()) as u32;
let subarray = memory.uint8view().subarray(offset, total_len as u32);
let subarray = memory.uint8view().subarray(self.offset, total_len as u32);
Some(WasmCell::new(subarray))
}
}
@@ -140,14 +132,13 @@ impl<T: Copy + ValueType> WasmPtr<T, Array> {
return None;
}
let offset = align_pointer(self.offset as usize, mem::align_of::<T>()) as u32;
Some(
(0..length)
.map(|i| {
let subarray = memory
.uint8view()
.subarray(offset + i * item_size, offset + (i + 1) * item_size);
let subarray = memory.uint8view().subarray(
self.offset + i * item_size,
self.offset + (i + 1) * item_size,
);
WasmCell::new(subarray)
})
.collect::<Vec<_>>(),